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You folks have been very helpful! You can tell that I am a rank beginner, but I still think we sometimes talk past each other. Here is a 100MHz band-pass filter, simply an inductor and a capacitor in

bleeder across the antenna's lead in the station to drain static accumulation and never mind if it's a "grounded" antenna. A permanent bleeder like that does not affect reception or transmission. For

Hello Syd, When you have read the beginner guide, have a look at: /g/nanovna-users/wiki/16592 73, Rudi DL5FA

I use my wedding ring to short the coax... Or make sure I touch the coax shield and center... You can still get a static discharge from the antenna at the base. 73, and thanks, Dave (NK7Z)

Syd, I suggest you read this document which will get you more familiar with the NanoVNA. It is in the files section of this group

Yep. One day long ago I was in my shack in the evening and I heard "snap, snap, snap, snap..." and wondered what the heck? I quickly found the source. I had a feedline's PL259 disconnected and

Syd, You have to calibrate using the RF demo board Short, Open and Load in order to establish the measurement "Reference Plane" right at the U.FL connector. If you calibrate on the NanoVNA and then

Syd, Are you remembering to press the RESET menu button in the Cal menu immediately prior to pressing the Calibrate button? You need to do that to clear old data from device RAM.

Syd - please review the NanoVNA forum's WIKI - link at the bottom of every email. You will find alot of good info there. Also please use the search function of the messages section (search help doc is

Calibration only occurs at the points in the scan, 101, 201, or 401 points depending on the type of nanoVNA and the frequency.? If you do a cal from 1 to 900 MHz with 101 points, you only get a

No, I used the items that came with the Nano. But the board tested OK when connected to the demo bd for the open, short, 50, 33 & 75 ohm test points on the bd! Everything seems to work except the

I just found the TAPR VNA files in the Files section and now I am curious about this application that has documentation and zip files, and looks like it is made to work with Windows. Is this

Syd, Did you calibrate using the short, open and load on the RF Demo board? Roger

Indeed.. I find that I wind up with a selection of barrels and other similar gender changing.? If you're doing precision work, where mm count, then you probably want loads in both configurations to

Yes. Yes at the end of the cable, if you're using them.

I just found, in the Files section of this forum, this document "NanoVNA RF CalibrationConsiderations and Procedure-v1.1" (you can tell I'm rather new to this forum and am still learning about all of

You can connect the nanoVNA to the mac using the latest version of SimSmith. See https://www.youtube.com/watch?v=-lFvQg9GKR4&list=PLUl8S204xIezUOWbThMDWEdkK7h4Ywei7 for an overview Intro toSimSmith is

Syd, Yes you should calibrate at the end of the cable, not the VNA connectors. solation iswhen a load is attached to both inputs at the same time o r if you have only one load, just to ch1. Only the

When calibrating the NanoVNA, one plugs in the open, short, & dummy load (O, S, L) directly into the NanoVNA; hence, the calibration plane is at the unit itself. Since I'm using connector cables to

Blowing dust, snow, or rain, are even more of a charging hazard than the field from a passing thunderstorm.? Continuous charging. It charges until something breaks down, so you get a buzz or